[ilikepooters]

Quote:

Are they better than than Lorenz E88CC ? I got Lyr yesterday tried some tubes and so far like most E88CC's. I like airy, aggresive and dynamic mids and bass with as good impact as it gets

Using Lyr with HD650.

 
I've tried the SEL Lorenz PCC88's and i have to say i prefer the sound of the Siemens over those, but not tried any E88CC Lorenz tubes yet.
 
I wouldn't say the Siemens have massive bass impact, more like a subtle warmth, but the 650's are a warm can anyway, so can probably get away with a less bassy tube.
I don't know how to describe mids other than recessed or not, but vocals sound superb on the Siemens as far as i can tell.
Treble is smooth and airy, not bright at all, but aren't the 650's a bit veiled in the high's? could do with some sparkle from what i've read on them.
 
Soundstage is expansive, more so than any other tube i've got.
 
Don't know if all that helps any.

 

[gerald410]

Quote:

More Siemens PCC189's have gone up on sale, i really can't reccomend these tubes highly enough, they absolutely trounce the stock tubes, absolute bargain.
http://www.ebay.co.uk/itm/2-x-PCC189-7ES8-SIEMENS-NOS-NEW-OWN-BOX-/221207288653?pt=DE_TV_Video_Audio_Elektronenr%C3%B6hren_Valves&hash=item3380fb5b4d
 
Looks like they'll keep turning up every so often.
 
I'm intrigued to try the ECC189 variant now, only 6.3v heater instead of 7.6v so should be more akin to E88CC or CCa.

I bought a pair wish me luck

 

[Flisker]

Bought pair too They are on fire :basshead:

Btw, I know it's off topic, but do any of you guys know how to unscrew screws on the bottom of Lyr so I could open it + what switch for power on/off is used in Lyr ? (Got my Lyr pretty fu**ed up during shipping and switch is broken so I would like to solder there new one)

 

[Flisker]

So got answer from seller , just for info... this is not compatible with Lyr -> http://www.ebay.ca/itm/290614310990?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649#ht_1600wt_754

 

[ilikepooters]

Quote:

So got answer from seller , just for info... this is not compatible with Lyr -> http://www.ebay.ca/itm/290614310990?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649#ht_1600wt_754

 
Your Lyr already has sockets, so it's not something you'll need to buy unless you break your sockets.

 

[sceleratus]

stuff that only interests me..
 
 
"The first grids were not placed close to the filament. The hot wire filament sagged out of shape and the grid had to be kept clear. It was only later that it was discovered that the closer the control gid was placed to the cathode and the more closely the turns of the wire spiral to one another the more effect on the control of the electron stream it had. Over time the grid changed from the original grid iron shape through a helix of stiff wire supported on a support rod to a mechanically produced piece of precision engineering. Automated grid production centred on winding fine wire round two support rods. The machine would notich the (Nickel) support rod, lay the (Molybdenum) wire in the notch and finally burr the sides of the notch over the wire (known as peening) to lock it in place.
Knowing that the pitch of the grid wires was one element in the control of the electron stream grids with variable pitch were produced. These had close wound turns at the end and more widely spaced wires at the centre. This variable pitch grid is at the heart of the variable mu valves, where the sensitivity of the valve, and hence its amplification, can be altered by changing the amount of negative bias on the control grid."

 

[sceleratus]

You can find the "exact" switch here...http://www.mouser.com/Electromechanical/Switches/_/N-5g2h/
about 50,000 to choose from.
 
Narrowed down:   http://www.mouser.com/Electromechanical/Switches/Toggle-Switches/_/N-5g2j?P=1z0z2y5Z1z0z24z

 

[sceleratus]

took my calipers out.  The barrel is 0.2260" or 5.75mm
there is no lock nut to the back panel.  that means it is floating in the hole and board mounted with 90 deg pins.  SPST
you'd have to be ok with a board level re-work.

 

[Flisker]

Your Lyr already has sockets, so it's not something you'll need to buy unless you break your sockets.

Oh, right. Anyway I ordered savers you linked hope they are fine

 

[Flisker]

took my calipers out.  The barrel is 0.2260" or 5.75mm
there is no lock nut to the back panel.  that means it is floating in the hole and board mounted with 90 deg pins.  SPST
you'd have to be ok with a board level re-work.

Thanks for links and information.

What do you mean with board level re-work , isn't is as simple as unsoldering one switch for another ?

 

[sceleratus]

Quote:

Thanks for links and information.

What do you mean with board level re-work , isn't is as simple as unsoldering one switch for another ?

Not exactly.
That board is made using "SMD" surface mount devices or components.  Rather than older thru-hole components.
The density of the components is much greater with SMD.  The switch is probably thru-hole but could be SMD.
That would not be fun.
 
But it can be done either way.
BTW:  You will need a chisel-tip (narrow) for your soldering iron. Do not use a pointed one. Also get fine diameter multi-core solder with internal flux.
Adding a flow of thread like solder, rather than big goopy blobs.
 
These are Excellent soldering tutorials and they take you from the tool to thru-hole to SMD.
http://www.eevblog.com/2011/06/19/eevblog-180-soldering-tutorial-part-1-tools/
 
http://www.eevblog.com/2011/07/02/eevblog-183-soldering-tutorial-part-2/
 
http://www.eevblog.com/2011/07/18/eevblog-186-soldering-tutorial-part-3-surface-mount/

 

[DenonBeaver]

Need some help guys,
[size=small][size=12pt]I 've [size=small]been listeni[size=small]ng to my LCD[size=small]-2's thru [size=small]my[/size] L[size=small]yr and Bifrost combo[size=small] and now i'm[/size][/size][/size][/size][/size] looking for something with a more analytical sound not syrupy. Geared towards the higher end to bring out the [size=small]LCD[size=small]-2[size=small]. [size=small]I feel [size=small]like the darker sound of the LCD-2's is even [size=small]more magnified through the Lyr. [/size][/size]From what [size=small]I've read the tubes below are more geared towards that brighter sound signatur[size=small]e.[/size][/size][/size][/size][/size][/size][/size][/size]
 
[size=small][size=12pt]I'm looking at the Tesla E88CC
 http://www.upscaleaudio.com/products/Tesla-E88CC-%7B47%7D-6922.html

or the Tungsram 6922 red label
http://www.upscaleaudio.com/products/Tungsram-PCC88-%7B47%7D-7DJ8.html[/size][/size]
 
[size=small][size=12pt]Or something else [size=small]if you feel [size=small]you've got a better suggestion[size=small].[/size][/size][/size][/size][/size]

 

 

[Mark-sf]

Quote:

Need some help guys,
[size=small][size=12pt]I 've [size=small]been listeni[size=small]ng to my LCD[size=small]-2's thru [size=small]my[/size] L[size=small]yr and Bifrost combo[size=small] and now i'm[/size][/size][/size][/size][/size][/size][/size] looking for something with a more analytical sound not syrupy. Geared towards the higher end to bring out the [size=small]LCD[size=small]-2[size=small]. [size=small]I feel [size=small]like the darker sound of the LCD-2's is even [size=small]more magnified through the Lyr. [/size][/size]From what [size=small]I've read the tubes below are more geared towards that brighter sound signatur[size=small]e.[/size][/size][/size][/size][/size][/size]
 
[size=small][size=12pt]I'm looking at the Tesla E88CC
 http://www.upscaleaudio.com/products/Tesla-E88CC-%7B47%7D-6922.html

or the Tungsram 6922 red label
http://www.upscaleaudio.com/products/Tungsram-PCC88-%7B47%7D-7DJ8.html[/size][/size]
 
[size=small][size=12pt]Or something else [size=small]if you feel [size=small]you've got a better suggestion[size=small].[/size][/size][/size][/size][/size]

 

 
 
I am currently burning in a pair of Amperex Oracle Label ECC88's such as these:
http://www.ebay.com/itm/Amperex-Orange-Label-6DJ8-ECC88-Tube-Pair-Same-Date-Codes-/281085595042?pt=Vintage_Electronics_R2&hash=item417201cda2
 
So far the fit the sound signature you are looking for providing an abundance of detail with excellent separation and tight bass. I hope they develop a bit more soundstage depth and they'll be winners.  

 

[sceleratus]

decided to look "inside" to answer Flisker's switch question.
 
it is an Oleda brand, model MTS-102C4
 
http://www.chinaleda.com/en/product.php?action=type&id=7
 
i can't post photos until i am grown up and have 10 posts.

 

[sceleratus]

so why not take a pic or two?